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Diptera.info » Miscellaneous » General queries
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hairy/bare eyes in Diptera
Nikita Vikhrev
Has anybody idea(s) what is advantage or disadvantage of hairy eyes?
Nikita Vikhrev - Zool Museum of Moscow University
 
Iain MacGowan
Hi Nikita
In Lonchaeidae hairy eyes are most commonly found in species which fly early in the spring or are montane or boreal so I guess the advantage is in providing some thermal protection
Iain
Iain MacGowan
 
John Carr
Iain MacGowan wrote:
Hi Nikita
In Lonchaeidae hairy eyes are most commonly found in species which fly early in the spring or are montane or boreal so I guess the advantage is in providing some thermal protection
Iain


In Chironomidae, Drosophilidae, and Tachinidae I have not noticed a correlation between temperature and eye hair.
 
http://www.flickr.com/photos/31715949@N00
Nikita Vikhrev
Iain and John, thank you for your reactions.
1. I delaied with reply reading pdf: "Insects have hairy eyes that reduce particle deposition, Amador_et_al, 2015" Alas, not very informative paper.
2. Looking at Muscidae family, thermal protection may has sense: hairy eyes are typical for such a cold-resistan genera as Thricops, Drymea, Phaonia. But there are contrexamples as well^ in Hydrotaea irritans group eyes are hairy only in southern H. penicillata.
Nikita Vikhrev - Zool Museum of Moscow University
 
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